The Battle of Mamaroneck was a skirmish in the New York and New Jersey campaign of the American Revolutionary War fought on October 22, 1776, at Mamaroneck, Westchester County, New York.
Following the retreat of George Washington's Continental Army to White Plains, British General William Howe landed troops in Westchester County, intending to cut off Washington's escape route. To cover the eastern flank of his army, Howe ordered Major Robert Rogers and his Queen's Rangers to seize the village of Mamaroneck which had been recently abandoned by the Continental Army. On the night of October 22, 750 men under Colonel John Haslet attacked the British encampment. Haslet's men achieved complete surprise, but Rogers' Rangers rallied and drove off the attackers. However, they suffered greater casualties than the Americans. Historian Otto Hufeland described the fight: While at White Plains Washington was informed that the regiment of loyalists, recruited in the vicinity and commanded by the renegade Colonel Robert Rogers was encamped at Heathcote Hill in Mamaroneck. Lord Stirling at once ordered Colonel Haslet and Major Green with seven hundred and fifty men to attempt a surprise attack on the Rangers during the following night. Unfortunately the attack was made when the sentries were being changed and the surprise was not entirely successful, but the Rangers were “very roughly handled” as one of their historians admits, quite a number being killed and wounded. As a result of the raid the Americans brought back “a pair of colours, sixty stand of arms and a variety of plunder,” besides thirty-one prisoners, every one of whom was a “native of this government.”